Cultivator



(No Model.)

1. 8; B. STUART.

GULTIVATOR.

N0. 43 6'7. Patented Sept. 2, 1890.

tlrtTTsn TATES PATENT @rricn.

ISO STUART AND BRONICK STUART, OF NOLANVILLE, TEXAS.

CU LTIVATO R.

SPEGIFICATION forming part of Letters Patent No. 435,867, datedSeptember 2, 1890.

Application filed June 12, 1890. $erial No. 355,231. (No model.)

To on whom it may concern.-

Be it known that we, ISOM STUART and BnoNIoK Sr UART, citizens of theUnited States of America, residing at Nolanville, in the county of Belland State of Texas, have invented certain new and useful Improvements inCultivators; and we do hereby declare the following to be a full, clear,and cxactdescription of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters ofreference marked thereon, which form a part of this specification.

This invention has reference tocultivators; and it consists in theimprovements hereinafter described and set forth, whereby an efficientand durable plow is provided that will be capable of light draft and theworking depth of the plow or plows readilycontrolled at all times.

In the accompanying drawings, forming part of this specification, Figure1 is a side view, and Fig. 2 a plan view, of a plow enibodying ourimprovements.

The curved standards A A, located at each side in different longitudinalplanes, carry the front and rear plows l3 l3, and said standards arehorizontally extended at their upper ends to form the side bars a a ofthe plowframe, which at their forward ends are bent inwardly and thenparallel to form portions 1) l1, between which the tongue C is bolted.The tongue 0 has a vertical bolt 0 seated therein adjacent to its frontend, upon which is pivotally secured a vertical clevis D, having avertical series of perforations, in 'one of which the draft-loop d ispivotally secured.

The handle-bars E E are bolted at their forward ends to the sidebars a aof the frame, and are supported and braced in the rear of saidconnection by outwardly-inclined braces c c, secured to the frame and tothe inner sides of the handle-bars. A transverse horizontal brace F hasits ends bent vertically to bear against the inner sides of and besecured to the rear portions of the handle-bars.

A vertical forwardly--curved plate G is secured at its base in the innerside of the bar a of the frame adjacent to the standard A, and saidplate is embraced by a rod f, secured to its upper end and to the bar a.The said plate G is provided with a vertical series of perforations, atone side of which is a vertically-elongated slot g, through which passesa longitudinal lever ll, inclined, as shown in Fig. 1, and pivotallysecured at its forward end to a bracket 71., bolted on the frame, whileat its rear end adjacent to the handle portion thereof is pivoted abell-crank lever '1, pivotally connected with a longitudinal rod j,playing through an car on the side of the lever I-I,

- and carrying at its end a bolt 7a, adapted, by

reason of a spiral spring surrounding the rod j and seated between thebolt and ear, to normally hold said bolt in engagement with one of theperforations of the plate to lock the lever H in any of the severalpositions to which it may be moved. Pivotally attached to the leverl-Lbetwceu the plate G and the forward pivot-al connection of saidlever, is a depending bar I, the lower end of which is perforated forthe bearing of one of the spindles of the carrying-wheel J, the otherspindle of thelatter bearing in one end of a link Z, the other endofwhichisph otally connected to the lower end of a depending bar K,rigidly secured at its upper end to the bar a of the frame.

It will be quite obvious that by raising and lowering the lever H thefixed and pivotal suspending devices at the respective sides of thewheel will result in the latter moving downward or upward and change itshorizontal position so as to vary the depth at which the plows aresupported, and hence control the working depth of the same at all times.As will be seen, the disposition of the leverand locking devices is suchthat they are not liable to be affected by the strain exerted on theplows. Moreover, the general arrangement and construction of the partsis such that a very light draft will only be necessary to pull the plow.

1. The combination, in a cultivator, of the main frame, the horizontallever ll, pivotally secured as described, locking devices therefor, avertical bar pivotally secured to said lever, the carrying-wheel havingone of its spindles bearing in the lower end of said vertical bar,together with a fixed bar having a pivotal dependi g link, in the lowerend of which the other spindle of said wheel bears, substantially as setforth.

suspended from said lever, and a carrying-' wheel having one of itsspindles bearing in- 10 the lower end of the bar, together withadepending bar secured rigidly to the frame and p WVitnesses:

' J. Y. WALKER,

H. J. POTTER.

having a pivotal depending link, in the lower end of which the otherspindle of the carry ing-wheel is seated, substantially as set forth.

In testimony whereof we afiix our-signatures r 5 in presence of twowitnesses.

ISO STUART. BRONIGK STUART.

